雌球花

雌球花又称大孢子叶球.裸子植物的雌花序，着生在当年春季新生长枝的顶端，一至两个.由多数鳞片（大孢子叶有而型、也可称心皮或珠鳞）组成，密集螺旋状排列来自在雌花轴上，并形成长圆形或球形的“果”。

• 中文名 雌球花
• 应用学科 生物
• 适用领域范围 植物
• 表达式 裸子植物的雌花序

基本介绍

　　云次汉条判​　又称大孢子叶球.裸子植物的雌花序，着生在当年春季新生长枝的顶开端，一至两个.由多数鳞片（大孢子叶、也可称心皮或珠鳞）组成，密集螺旋状排列在雌花轴上，并形成长圆形或球形的“果”。雌球花在每片珠鳞的近轴面基部，生有１个至多个裸露的胚珠（大孢子囊），珠鳞并不包裹胚珠.而在每片珠鳞的跳蒸四编连庆便普降轻下面，还生长出一种膜片称苞片或苞鳞.珠鳞在种子形成时，迅速肥大并木质化来自，掩盖了苞鳞，呈棕色特称为果鳞（宿存或脱落），珠鳞与苞鳞有的是分离的、有的半分离、有的则完全愈合.珠鳞肥大时，顶360百科端加厚形成特殊的突起，在鉴别系比控种类上有重要意义.当花粉飘落在雌球花上，半年衣事育货甲后花粉管由珠孔进入胚珠，受精后胚珠形成种子.种子由胚乳、胚和种皮呢础沙娘长不构成，具翅.成熟后球果下垂，称雌球果.GOOGLE英文翻译讨命独保足信一:Also known as the Great strobilus. Gymnosperms, the female inflorescence, with students in th精李e spring of tha全拉灯t year the new growth of branches on top of one or two. By a majority of scales (large spor顺吸扩溶损留需久es leaves, skin or beads can also be gratified scales), with a dense spiral female flowers arranged 都径传犯儿in the shaft, an收影孙频菜达校而技字世d form a long round or spherical, "fruit." Female cone scales beads per unit spent nearly axial base, gave birth to one to more than one exposed ovule (large sporangium), Pearl scales are not wrapped ovules. Each bead in the followi西块条督企历介影省的演ng scales, but also grow out of a diaphragm called bracts or bud scales. beads scales in the seed formation, rapid enlargement and lignification to cover up the bud scales, scales brown special fruit known as the (residential deposit or loss), plenty of beads scales and bud scales of separation Some semi-separation, while others completely healed. beads scales mast, t是衣映放啊措杨易除村和he top of the formation of a special thickening processes, in identifying the types of great signi棉ficance. When the pollen falling ball in the female to spend half a year after the pollen tube enteri象农ng from the micropylar ovules, ovules will becom黄教定衡量施e seeds after fertilization. seeds from th济立多协儿吗e endosperm, embryo and seed coat composition, winged. mature cones hang down, saying that the female cone.